Casement-window adjuster



April z2, 1924. 1,491,556

J. H. SHAW CSEMENT WINDOW ADJUSTER vFiled July 21.1921

Patented Apr. 22, 1924.

UNITEDSTATES 4PATENT OFFICE. j

JOHN H. SHAW, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO SABGENT & CONEPANY, OF NEW HAVEN, CONNECTICUT.

CASEMENT-WINDOW ADJ' USTER.

Ap'pncation mea Juiy 21, 1921. serial 1ro. 486,360.

To all lwhom z't may concern:

Be it known that I, JOHN H. SHAW, a citizen of the United States, residing in New Haven, county of New Haven, and State of Connecticut, have invented certain new and useful Improvements in Casement-Window Adjusters, of which the following is a full, clear, and exact description.

This invention relates to window adjusters, and more particularly to a device of this type lwhich is adapted to be applied to a swinging-window or closure and to hold it automatically in various adjusted open positions. Such devices usually comprise an extensible element comprising two telescoping members, one of which is adapted to e received in the other, and is adapted to be frictionally and yieldingly held against movement therein, so that the window may be moved for the purpose of opening and closing the same when a positive force is applied thereto, but will be held against accidental movement as by the force of the wind.

Manufacturers of these devices have resorted to various expediente to secure the required amount of friction between the two telescoping members 1n such a manner that the parts will not be so subject to wear that the friction will soon be destroyed by the use of the article and at the same time to produce a simple and relatively inexpensive device for this purpose.

@ne object of my invention is the pro-s vision of an extensible element for a window adjuster which shall be simple in construction and relatively cheap to manufacture.

Another object of my invention is to roduce a device of this character which s all have the required amount of friction desirable for such an article, and at the same time obviate any need for adjustment of the parts which might be necessary when the same have been worn by long usage.

A still further object of my invention is the provision of a friction member in such an article of manufacture, which shall be capable of being made of wear resisting material and which will be easy to replace if worn out, although it is not contemplated that such replacement `will be necessary in the ordinary use of the article.

To these and other ends the invention consists in the novel features and combinations ofY parts to be hereinafter described and claimed.

In the accompanying drawings:

Fig. 1 is a front elevational view of a portion of a window having an adjuster embodying my improvements applied thereto;

ig. 2 is a top plan view of the parts shown in Fig. 1;

Fig. 3 is an enlarged fragmentar view of a window havin an adjuster applled thereto, the window eing shown in closed positlon;

Fig. 4 is asectional View on line ,4 4 of Fig. 3;

Fig. 5 is a Fig. 4;

Fig. 6 is anfenlarged detail longitudinal sectional view of a portion of the window adjuster;

Fig. 7 is a fra mentary sectional view similar to Fig. 6, s owing a modified form of my device; and

Fig. 8 is a view similar to Fig. 7 showing a further modification.

In the embodiment of my invention which I have selected for illustration, I have shown a window 10 hinged to a suitable frame l1. While l have shown an ad 'uster embodying my improvements applied to a easement window at the lower part thereof, it is obvious that the principles of my invention may4 have other and various a lications. My adjuster includes an extensible element comprising two .members mounted for telescopic movement relatively to each other. One of these members comprises a tube or socket 12 pivoted at 13 to a bracket 14 mounted upon the window frame. The other member of the pair is in this instance ex# empliied by the rod 15 pivoted at 16 t0 a sectional view on line 5--5 of bracket 17 mounted upon the window. It

is, of course, obvious that this arranent may be reversed and the rod mounts upon i --the frame and the tube upon the window, if

desired.

. In order to secure the required frictional and yielding engagement between these two telescoping members, so that the window will be retained in adjusted positions and yet be movable when a force is positively applied thereto, have arranged a friction ring which shall be mounted in such a manner as to frictionally engage the opposing surfaces of the rod and tube. This ring may be mounted to perform this function in a variety of ways, some of which I have shown in the various iiguresof the drawings. In the referred form I propose to provide the ro 15 with an annular recess 2O in which is mounted the friction ring 21. While this friction ring ma be a solid memf ber just large enough to t closely within the tube 12 and may also be secured to the rod 15, I propose to provide a split `ring which is mounted loosely upon the rod within the recess 20. As shown in Fig. 5, the

The ring may preferably be made of hard wear-resisting material, and it is obvious that it will contact with the tube about the entire circumference thereof, so that the wear, if any, willbe distributed about the circumferences of the tube and ring. With this construction it will practically never be necessary to renew the ring or any of the parts, and the desired frictional engagement of the telescoping members will always be maintained.

In Fig. 7, I have shown a modified form of my device wherein the tube 12a is provid-A ed with an annular recess 20@ ad'acent the end thereof by being s un loose y over a split ring 21 similar to t e ring 21. In this form of my invention the annular recess is omitted from the rod 15a and the rod slides with a frictional engagement within the ring 21, which is loosely mounted within the recess in the tube 12a. In this instance the ring is formed so that normally its interior diameter is slightly smaller than the diameter of the rod 15a, so that when the rod is inserted in the tube, the ring willV be slightly spread and its resilience will cause it to tightly engage the rod.

In Fig. 8, I have shown a still further modification of my invention in which the rod 15b is made considerably 'smaller than the tube 12b and the annular recess is again omitted from this rod. In this form a split ring 21b is loosely mounted upon the rod 15" and confined in its movements thereon by the rivets or pins 19. In this instance the ring may be made either so that its interior diameter is slightly smaller than the diameter of the rod or may be formed so that its exterior diameter will normally be slightly larger than the interior diameter of the tube. In either case when the ring is placed menate upon the rod and the rod is inserted into the tube, the ring will be tightly engaged bef tween the tube and rod so that the required frictional engagement will be secured to prevent any accidental movement of the parts.

While I have stated in some instances that vthe ring is engaged between the tube and the rod, it .will be understood that as the ring is carried by one of these members and moves relatively to the other, it will only be necessary for 1t to tightly engage the one relatively to which it moves. For instance,

in the formshown in Fig. 7, where the rin is carried by the tube, it may engage the ro entirely by the resilience' thereof and not from any pressure exerted on the expanding ring by the tube. Likewise, in the modications shown in Figs. 6 and 8, the rin may at all times bel loose upon the rod and orced into engagement with the tube merely b the resilience of the ymaterial from which 1t p is made.r l l While I have illustrated and described some preferred forms of my invention, it is to be understood that the same is not limited thereto in all of its details, but is capable of man modifications and variations which lie within the s irit of the invention4 and within the scope o the appended claims.

What I claim is:

1. In a window adjuster, an extensible element comprising a pair of telescoping members, and a friction ring of Wear resisting material carried by one of said members and tensioned to expand into engagement with the other thereof.

2. In a window adjuster, an extensible element comprlsmg a pair of telescoping members, and a friction ring of wear resisting mational engagement with one thereon, and

means to limit longitudinal movement of said ring with respect to the other member.

ll. In a window adjuster, an extensible element comprising a pair of telescoping members, one of said members provided with a recess, a friction ring loosely mounted in said recess and held against displacement by the wall thereof, said friction member being tensioned to engage the other of said` telescoping members.

5. In a window adjuster, an extensible element comprising a pair of telescoping members, one of said members having an annular recess facing the other member and an an`- nulus mounted in said recess and frietionally engaging the other member.

6. In a window adjuster, an extensible element comprising a pair of telescoping members, one of said membershaving an annular recess facing the other member and an annulus of wear resisting material loosely mounted in said recess and rictionally engaging the other member.

7 In a window adjuster, an extensible element comprisin a tube, and a rod ada ted to be telescopica ly received therein, sai 4rod having an annular recess formed therein and a friction ring loosely mounted in said recess and frictlonally engaging the wall of the tube.

8. In a Window adjuster, an extensible element comprising a pair of telescoping members and a split friction ring loosel mounted upon one thereof and tensione to` frictionally engage the other.

9. In a window adjuster, an extensible element comprisin a air of telesco in members and a spt Friction annu us oosely mounted upon one thereof and adapted to frictionally en age the other, said annulus being formed o resilient material and adapted to normally present a surface slightly larger than the surface engaged thereby.

l0. In a window adjuster, an extensible element comprising a tube, and a rod adapted to be telescopically received therein, said rod having an annular recess formed therein andv a resilient split friction ring mounted in saidrecess, the outer diameter of said ring being-. normally larger than the inner diameter o the tube.

In Witness whereof, I have hereunto set my hand this l7th day of Jtlilf, 1921.'

HN H. SHAW. 

